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Finding the Fourth Proportional to 8,651.16, 12,977.24 and 2,728.22

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Solution

The fourth proportional to 8,651.16, 12,977.24 and 2,728.22 is: 4,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.16 : 12,977.24 = 2,728.22 : x
  2. Step 2: Convert to fraction form
    8,651.16/12,977.24 = 2,728.22/x
  3. Step 3: Cross multiply
    8,651.16x = 12,977.24 × 2,728.22
  4. Step 4: Simplify right side
    8,651.16x = 35,404,687.19
  5. Step 5: Solve for x
    x = 35,404,687.19/8,651.16
  6. Step 6: Final answer
    x = 4,092.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.